Stone Master Molds Rubber Molds for Concrete, Fieldstone Flat Mold

Stone Master Molds Rubber Molds for Concrete, Fieldstone Flat Mold


  • Professional grade rubber mold will last for hundreds of pours
  • Create your own custom fieldstones for walls, etc. Not intended for flooring.
  • NO RELEASE AGENT necessary
  • Each of 5 mold versions you purchase has one-of-a-kind stones, no repeats
  • Made in the USA, both materials and labor
  • Matching corners available


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Stone Master Molds Fieldstone Molds for Concrete

Stone Master Molds Fieldstone molds for concrete are ideal for making your own stone veneer for any indoor/outdoor project.  Each mold is created from natural stone to reproduce the natural stone's finest details. These molds will create irregularly shaped stones, also known as flagstones.  They are ideal for all buildings, fireplaces, retaining walls, accent walls, etc., and especially pair well with stucco.

Each stone produced is approximately 1-1.5" thick. Each Fieldstone mold for concrete is approximately 22.75" in length by 20.5" wide by 2" deep and makes approximately 2.9 square feet with a grout joint.

Our molds require NO release agent.  This will save you money, time, and clean up, as well as easy, clean release of face color pigments, unlike plastic molds, urethane molds, and silicone molds.   Available in 5 unique variations, with no stone repeats.  Matching corners are also available.

Manufactured Stone Basic Mixing Procedures Using A Pre-bagged Concrete Mix for your Fieldstone molds:

This is one suggestion for mixing the concrete for the Fieldstone molds. There are many other instructions available online, including videos.

BE SURE TO USE A CONCRETE MIX THAT CONTAINS PORTLAND CEMENT. We recommend Sakrete Maximizer, as it has lightweight aggregate, is high strength, and yields more product, but there are many kinds you can use. Follow the manufacturer’s instructions for mixing.

If using pigment, add desired iron oxide pigment to mixer (100% pure, no additives). These can easily be found on Amazon, etc.

A plasticizer can be added to reduce the amount of water in the mix. Pour into the molds which may already have coloring additives… NO RELEASE AGENT NECESSARY. Vibrate molds to release air bubble.

Finally, cure the concrete in the Fieldstone molds for approximately 24 hours at the minimum of 70 degrees Fahrenheit before demolding. Higher humidity is desired. Molds can be covered with a tarp to retain more heat and humidity. Continue to cure demolded stones at 70 degrees or greater until ready.


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